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    Combination pulverized fuel burner with integrated pilot burner
    11.
    发明申请
    Combination pulverized fuel burner with integrated pilot burner 有权
    组合粉煤燃烧器与集成引燃燃烧器

    公开(公告)号：US20090061372A1

    公开(公告)日：2009-03-05

    申请号：US12229325

    申请日：2008-08-21

    Applicant: Tino Just ,  Christian Reuther ,  Manfred Schingnitz

    Inventor： Tino Just ,  Christian Reuther ,  Manfred Schingnitz

    IPC: F23Q9/00

    CPC classification number: F23D17/005 ,  F23D1/00 ,  F23D14/22 ,  F23D14/78 ,  F23D2201/10 ,  F23D2201/30 ,  F23D2207/00 ,  F23D2900/00018

    Abstract: The invention comprises a combination burner for the gasification of pulverized fuels with an oxidation means containing free oxygen at ambient or higher pressures, as well as temperatures between 800-1800° C., with the ignition device of the pilot burner with flame monitoring and the pulverized fuel burner being integrated as a combination burner and all operating channels being routed separately from each other up to the mouth of the burner and the media carried by the channels only being mixed at the mouth of the burner. When the pilot burner is dismantled the eddy bodies 14 attached to its sleeve in the main burner oxidation means supply 17 can be exchanged quickly and easily and thus the main burner flame adapted in the optimum way to the reaction chamber contour of the reactor.

    Abstract translation: 本发明包括用于在环境或更高压力下含有游离氧气的氧化装置以及800-1800℃之间的温度与引燃燃烧器的点火装置与火焰监测气化粉煤燃料的组合燃烧器， 粉碎的燃料燃烧器作为组合燃烧器集成，并且所有操作通道彼此分开地直到燃烧器的嘴部，并且由通道携带的介质仅在燃烧器的口部混合。 当引燃燃烧器被拆卸时，主燃烧器氧化装置电源17附接到其套筒上的涡体14可以快速而容易地更换，因此主燃烧器火焰以最佳方式适应反应器的反应室轮廓。

    Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus
    12.
    发明授权
    Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus 有权
    固体燃料燃烧器，使用其的燃烧方法，燃烧装置和操作燃烧装置的方法

    公开(公告)号：US07168374B2

    公开(公告)日：2007-01-30

    申请号：US11011047

    申请日：2004-12-15

    Applicant: Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

    Inventor： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

    IPC: F23D1/00

    CPC classification number: F23C6/045 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/20 ,  F23C2900/06041 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2209/20

    Abstract: A solid fuel burner using a low oxygen concentration gas as a transporting gas of a low grade solid fuel such as brown coal or the like and a combustion method using the solid fuel burner are provided. The solid fuel burner comprises a means for accelerating ignition of the fuel and a means for preventing slugging caused by combustion ash from occurring. Mixing of fuel and air inside a fuel nozzle 11 is accelerated by that an additional air nozzle 12 and a separator 35 for separating a flow passage are arranged in the fuel nozzle 11, and the exit of the additional air nozzle 12 is set at a position so as to overlap with the separator 35 when seeing from a direction perpendicular to a burner axis, and additional air is ejected in a direction nearly perpendicular to a flow direction of a fuel jet flowing through the fuel nozzle 11. An amount of air from the additional air nozzle 12 is varied corresponding to a combustion load. By increasing the amount of air from the additional air nozzle 12 at a low load operation, an oxygen concentration of a circulation flow 19 formed in a downstream portion outside the exit of the fuel nozzle 11 is increased to stably burn the fuel. By decreasing the amount of air from the additional air nozzle 12 at a high load operation, a flame is formed at a position distant from the fuel nozzle 11 to suppress radiant heat received by structures of the solid fuel burner and walls of the furnace.

    Abstract translation: 提供了使用低氧浓度气体作为低等固体燃料如褐煤等的输送气体的固体燃料燃烧器和使用固体燃料燃烧器的燃烧方法。 固体燃料燃烧器包括用于加速燃料点火的装置和用于防止由燃烧灰发生的堵塞的装置。 燃料喷嘴11内的燃料和空气的混合通过在燃料喷嘴11中设置有附加的空气喷嘴12和用于分离流路的分离器35而加速，并且附加空气喷嘴12的出口被设定在位置 以便在从与燃烧器轴垂直的方向观察时与分离器35重叠，并且附加空气沿与流过燃料喷嘴11的燃料射流的流动方向几乎垂直的方向喷射。 来自附加空气喷嘴12的空气量相应于燃烧负荷而变化。 通过在低负载运转下增加来自附加空气喷嘴12的空气量，形成在燃料喷嘴11的出口外的下游部分的循环流19的氧浓度增加，以稳定地燃烧燃料。 通过在高负荷运转下减少来自附加空气喷嘴12的空气量，在远离燃料喷嘴11的位置处形成火焰，以抑制由固体燃料燃烧器的结构和炉壁接收的辐射热。

    Fuel injector for low NOx and enhanced flame stabilization
    13.
    发明申请
    Fuel injector for low NOx and enhanced flame stabilization 审中-公开
    燃油喷射器用于低NOx和增强的火焰稳定性

    公开(公告)号：US20060029895A1

    公开(公告)日：2006-02-09

    申请号：US11076550

    申请日：2005-03-08

    Applicant: Joel Vatsky

    Inventor： Joel Vatsky

    IPC: F23D11/00

    CPC classification number: F23C6/047 ,  F23C7/006 ,  F23C7/008 ,  F23C2201/101 ,  F23D1/00 ,  F23D2201/10 ,  F23D2207/00 ,  F23D2209/20 ,  F23M11/045

    Abstract: A fuel injector for use in a furnace is provided. The fuel injector is used to deliver pulverized fuel to a combustion chamber of a furnace. The structure of the fuel injector facilitates efficient combustion while stabilizing the combustion flame. As a result, a minimal amount of NOx and other undesirable byproducts are released into the atmosphere.

    Abstract translation: 提供一种用于炉中的燃料喷射器。 燃料喷射器用于将粉碎的燃料输送到炉的燃烧室。 燃料喷射器的结构有助于有效燃烧，同时稳定燃烧火焰。 结果，最少量的NO x x和其它不期望的副产物被释放到大气中。

    Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus
    14.
    发明授权
    Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus 有权
    固体燃料燃烧器，使用其的燃烧方法，燃烧装置和操作燃烧装置的方法

    公开(公告)号：US06889619B2

    公开(公告)日：2005-05-10

    申请号：US10292694

    申请日：2002-11-13

    Applicant: Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

    Inventor： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Toshikazu Tsumura ,  Yoshitaka Takahashi ,  Kouji Kuramashi

    IPC: F24B1/187 ,  F23D1/00 ,  F23H5/00

    CPC classification number: F23C6/045 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/20 ,  F23C2900/06041 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2209/20

    Abstract: A solid fuel burner and method uses a low oxygen concentration gas as a transporting gas for a low grade solid fuel such as brown coal or the like, provides for accelerating ignition of the fuel and for preventing slugging caused by combustion ash. Mixing of fuel and air inside a fuel nozzle 11 is accelerated by an additional air nozzle 12 and a separator 35 for separating a flow passage, arranged in the fuel nozzle 11, and an exit of the additional air nozzle 12 is set at a position that overlaps with the separator 35. Additional air is ejected in a direction nearly perpendicular to a flow direction of a fuel jet flowing through the fuel nozzle 11. The amount of air from the additional air nozzle 12 is varied corresponding to a combustion load, in order to assure stable burning of the fuel, and, to suppress radiant heat received by structures of the solid fuel burner and walls of the furnace.

    Abstract translation: 固体燃料燃烧器和方法使用低氧浓度气体作为诸如褐煤等的低等级固体燃料的输送气体，用于加速燃料的点燃并防止由燃烧灰产生的s塞。 燃料喷嘴11内的燃料和空气的混合通过附加的空气喷嘴12和用于分离设置在燃料喷嘴11中的流路的分离器35加速，并且附加空气喷嘴12的出口被设定在 与分离器35重叠。 附加的空气沿与流过燃料喷嘴11的燃料射流的流动方向大致垂直的方向喷射。 来自附加空气喷嘴12的空气量相应于燃烧负荷而变化，以确保燃料的稳定燃烧，并且抑制固体燃料燃烧器和炉壁的结构所接收的辐射热。

    Split flame burner for reducing NO.sub.x formation
    15.
    发明授权
    Split flame burner for reducing NO.sub.x formation 失效
    用于减少NOx形成的分火焰燃烧器

    公开(公告)号：US5724897A

    公开(公告)日：1998-03-10

    申请号：US738742

    申请日：1996-10-28

    Applicant: Bernard P. Breen ,  John P. Bionda ,  James E. Gabrielson ,  Anthony Hallo

    Inventor： Bernard P. Breen ,  John P. Bionda ,  James E. Gabrielson ,  Anthony Hallo

    IPC: F23D1/00 ,  F23C1/10

    CPC classification number: F23D1/00 ,  F23D2201/10 ,  F23D2201/20

    Abstract: An improved pulverized coal burner that reduces the formation of nitrogen oxides. The coal burner includes fuel splitters that separate a mixture of primary air and coal into a plurality of streams while the mixture is discharged through a diffuser having a plurality of partially open areas and a plurality of blocked areas. After passing through the diffuser, the plurality of streams are discharged into a furnace to be burned. The plurality of partially open areas and blocked areas are created by removing sections of the diffuser and replacing the removed sections with fuel spiders. Creation of these discrete streams delays mixing with secondary air. Because primary air is supplied in sub-stoichiometric quantities, the coal in these split streams will be burned under fuel-rich conditions for the first 100 to 200 milliseconds of combustion, until the delayed mixing of secondary air occurs. Combustion in a fuel-rich environment retards formation of nitrogen oxides in two ways. First, nitrogen that is part of the volatile matter that is evolved during the ears stages of combustion will tend to form molecular nitrogen rather than react with oxygen to form nitrogen oxides. Second, an oxygen deficiency will reduce formation of nitrogen oxides from atmospheric nitrogen. Two variations of bypass conduits are disclosed that allow a portion of the mixture of primary air and coal to bypass the diffuser and discharge into the furnace.

    Abstract translation: 一种改进的粉煤燃烧器，可减少氮氧化物的形成。 煤燃烧器包括燃料分配器，其将一次空气和煤的混合物分离成多个流，同时通过具有多个部分开放区域和多个阻塞区域的扩散器排出混合物。 在通过扩散器之后，将多个流排出到待燃烧的炉中。 通过去除扩散器的部分并用燃料蜘蛛代替去除的部分来创建多个部分开放区域和阻塞区域。 这些离散流的创建延迟了与二次空气的混合。 由于一次空气以亚化学计量的方式供应，这些分流中的煤将在富燃料条件下燃烧第一个100至200毫秒的燃烧，直到发生二次空气的延迟混合。 在富含燃料的环境中的燃烧有两种方式阻碍了氮氧化物的形成。 首先，作为挥发性物质的一部分的氮在燃烧期间演化，倾向于形成分子氮而不是与氧反应形成氮氧化物。 第二，缺氧会减少氮氧化物从大气氮的形成。 公开了旁路管道的两种变型，其允许一次空气和煤的混合物的一部分绕过扩散器并排放到炉中。

    COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BOILER, BOILER, AND METHOD FOR OPERATING BOILER
    17.
    发明申请
    COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BOILER, BOILER, AND METHOD FOR OPERATING BOILER 审中-公开
    燃烧燃烧器，固体燃料燃烧器，固体燃料燃烧锅炉，锅炉和操作锅炉的方法

    公开(公告)号：US20160356490A1

    公开(公告)日：2016-12-08

    申请号：US15241356

    申请日：2016-08-19

    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

    Inventor： Keigo Matsumoto ,  Kazuhiro Domoto ,  Naofumi Abe ,  Jun Kasai

    IPC: F23D1/00

    CPC classification number: F23D1/005 ,  F23C5/32 ,  F23C6/045 ,  F23C2201/20 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/101 ,  F23D2201/20 ,  F23D2209/20 ,  F23K2203/201 ,  F23L9/00 ,  F23N3/00 ,  F23N2021/10

    Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.

    Abstract translation: 本发明提供一种燃烧器，其特征在于，包括：燃料喷嘴（51），能够吹入通过将粉煤与一次空气混合而获得的燃料气体; 能够从燃料喷嘴（51）的外部吹出二次空气的二次空气喷嘴（52）; 火焰稳定器（54），其设置在所述燃料喷嘴（51）的前端部处以靠近所述轴心; 以及设置在燃料喷嘴（51）的内壁面和火焰稳定器（54）之间的整流构件（55），其中可以实现通过将固体燃料与空气混合而获得的燃料气体的适当流动。

    Combustion burner and boiler including the same
    19.
    发明授权
    Combustion burner and boiler including the same 有权
    燃烧器和锅炉一样

    公开(公告)号：US09127836B2

    公开(公告)日：2015-09-08

    申请号：US13388213

    申请日：2010-03-11

    Applicant: Keigo Matsumoto ,  Koutaro Fujimura ,  Kazuhiro Domoto ,  Toshimitsu Ichinose ,  Naofumi Abe ,  Jun Kasai

    Inventor： Keigo Matsumoto ,  Koutaro Fujimura ,  Kazuhiro Domoto ,  Toshimitsu Ichinose ,  Naofumi Abe ,  Jun Kasai

    IPC: F23D1/00 ,  F23C6/04

    CPC classification number: F23D1/005 ,  F23C6/045 ,  F23C2201/20 ,  F23D1/00 ,  F23D2201/10 ,  F23D2201/20 ,  F23D2209/20

    Abstract: A combustion burner 1 includes a fuel nozzle 2 that injects fuel gas prepared by mixing solid fuel and primary air, secondary air nozzles 3, 4 that inject secondary air from the outer periphery of the fuel nozzle 2, and a flame holder 5 that is arranged in an opening of the fuel nozzle 2. In the combustion burner 1, the flame holder 5 has a splitting shape that widens in the flow direction of the fuel gas. When seen in cross section along a direction in which the flame holder 5 widens, the cross section passing through the central axis of the fuel nozzle 2, a maximum distance h from the central axis of the fuel nozzle 2 to the widened end of the flame holder 5 and an inside diameter r of the opening 21 of the fuel nozzle 2 satisfy h/(r/2)

    Abstract translation: 燃烧器1包括喷射通过混合固体燃料和一次空气而制备的燃料气体的燃料喷嘴2，从燃料喷嘴2的外周喷射二次空气的二次空气喷嘴3,4和布置在燃料喷嘴2的外周的火焰保持器5 在燃料喷嘴2的开口中。在燃烧器1中，火焰保持器5具有在燃料气体的流动方向上变宽的分离形状。 当沿着火焰保持器5变宽的方向的横截面中观察时，穿过燃料喷嘴2的中心轴线的横截面为从燃料喷嘴2的中心轴线到火焰加宽端的最大距离h 燃料喷嘴2的开口21的内径r满足h /（r / 2）<0.6。

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